湖南新邵县白云铺铅锌金矿床控矿因素及富集规律分析

Analysis on ore-controlling factor and enrichmentregularity of Baiyunpu lead-zinc-gold deposit in Xinshao,Hunan

从区域地质背景、矿区地质特征及矿床地质特征等方面对新邵白云铺铅锌金矿床进行了研究对比,指出地层岩性和构造是区内铅锌金矿床的主要控矿因素,铅锌矿主要赋存于棋梓桥组第一段及第二段灰岩层间破碎带中,金矿主要赋存于泥盆系中统半山组、跳马涧组的砂岩、杂砂岩中。同时从地层、岩性、围岩蚀变等方面对区内铅锌金矿床进行了富集规律分析总结,指出寻找同一类型铅锌金矿床应具备的地质特征,对区域内开展新一轮铅锌金矿找矿工作具有重要意义。

The Xinshao Baiyunpu lead-zinc-gold deposit is studied and compared from the regional geological background,the geological characteristics of the mining area,and the geological characteristics of the deposit.It is pointed out that stratigraphic lithology and structure are the main ore-controlling factors of lead-zinc-gold deposits in the area.Zinc deposits are mainly hosted in the limestone interlayer fracture zone of the first and second sections of Qiziqiao Formation,and gold deposits mainly occur in the sandstone and graywack of the Middle Devonian Banshan Formation and Tiaomajian Formation.At the same time,it has analyzed and summarized the enrichment regularity of lead-zinc-gold deposits in the area from the aspects of stratigraphy,lithology,wall rock alteration,etc.It is pointed out that the geological characteristics should be possessed in the exploration for the same type of lead-zinc-gold deposits.There is a great significance for the new round of lead-zinc-gold exploration work in the region.